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md: move io accounting out of personalities into md_make_request

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While I generally prefer letting personalities do as much as possible,
given that we have a central md_make_request anyway we may as well use
it to simplify code.
Also this centralises knowledge of ->gendisk which will help later.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown
2010-03-25 16:20:56 +11:00
parent 2b7f22284d
commit 490773268c
7 changed files with 12 additions and 45 deletions
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8
drivers/md/raid0.c
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@@ -472,20 +472,12 @@ static int raid0_make_request(struct request_queue *q, struct bio *bio)
sector_t sector_offset;
struct strip_zone *zone;
mdk_rdev_t *tmp_dev;
const int rw = bio_data_dir(bio);
int cpu;
if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
md_barrier_request(mddev, bio);
return 0;
}
cpu = part_stat_lock();
part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw],
bio_sectors(bio));
part_stat_unlock();
chunk_sects = mddev->chunk_sectors;
if (unlikely(!is_io_in_chunk_boundary(mddev, chunk_sects, bio))) {
sector_t sector = bio->bi_sector;